Finding the Fourth Proportional to 22,078.54, 30,467.71 and 12,519.30

Step by Step Solution

1. Step 1: Write the proportion equation
   22,078.54 : 30,467.71 = 12,519.30 : x
2. Step 2: Convert to fraction form
   22,078.54/30,467.71 = 12,519.30/x
3. Step 3: Cross multiply
   22,078.54x = 30,467.71 × 12,519.30
4. Step 4: Simplify right side
   22,078.54x = 381,434,446.67
5. Step 5: Solve for x
   x = 381,434,446.67/22,078.54
6. Step 6: Final answer
   x = 17,276.25